Network service performance measurement architecture
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摘要: 网络测量基础设施是网络测量领域研究的关键问题,在Internet网络环境下,网络服务提供商和网络管理员希望能从用户的角度了解其网络服务的服务质量,而用户希望获得定量的指标来选择质量最优的网络服务提供商.为此,在研究现有网络测量基础设施的前提下,提出一种分布式网络服务性能测量体系结构——SPMA.探讨了现有测量基础设施的经验和不足,重点介绍了SPMA的结构及其特点.SPMA采用了一种用户可定制、测量内容可扩展的通讯模型和数据模型,并使用了一种基于测量代理的测量探针自动部署机制.SPMA通过在不同网域部署测量探针收集被测目标的性能指标,从而可以最大限度的反映用户可获得的服务质量;它对外以Web服务模式提供测量服务,易于用户提交测量请求和获得测量结果.Abstract: Establishing network measurement infrastructure is a key problem in network measurement area. Under the environment of internet, sometimes network service providers and network administrators want to know the quality of their service from the perspective of users, and the users also want to learn which provider would be the best one. A distributed network service performance measurement architecture(SPMA) was put forward to solve this problem. Experience and shortcomings of current network measurement infrastructures were described and analyzed.Then the architecture and main features of SPMA were presented. SPMA makes use of a customized and extensible model for communication and data expression and deploys measurement probes automatically based on agent technique.SPMA provides measurement service for the outward users in the mode of web service.When a user requires SPMA to measure a service,SPMA will collect the performance information,which is provided by the probes distributed in different network area,and then the analysis results will be fed back to the user.
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